Charterhouse

Last year, Charterhouse launched a primary school in the city of Lagos and will open a secondary school this September.

For example, while Charterhouse UK displays a rainbow flag, the Nigeria school does not.

"We're a British independent school but sitting firmly within Nigerian cultural needs," says John Todd, head of Charterhouse Nigeria.

Recognising Nigeria's deeply religious society, Charterhouse also permits parents to take their children home from the boarding house for Sunday church services, with the expectation that they return by Monday morning.

While Charterhouse UK typically has a long waiting list and should not be affected, less sought-after boarding schools may experience a decline in enrolment owing to the new competition in Nigeria.